EP 0239901 A2 19871007 - Conductive copper paste composition.
Title (en)
Conductive copper paste composition.
Title (de)
Leitfähige Kupferpastenzusammensetzung.
Title (fr)
Composition de pâte conductrice contenant du cuivre.
Publication
Application
Priority
- JP 7530286 A 19860331
- JP 7530386 A 19860331
- JP 9580986 A 19860424
- JP 11319786 A 19860517
- JP 11319886 A 19860517
Abstract (en)
A conductive copper paste composition adapted to yield a highly conductive film receptive to solders without pretreatment is disclosed. This conductive paste comprises a copper metal powder, a resin component including a thermosetting resin, and an assortment of additives. In use, the paste is applied to an insulation substrate to a predetermined circuit pattern and cured in situ. Soldering can then be performed directly on the cured circuit. This contributes not only to the conductivity of the circuit but dispenses with the activation treatment and electroless plating or electroplating that have heretofore been essential prior to soldering. The invention, therefore, results in a substantial curtailment of production process and a proportional econimic advantage. In addition, this conductive paste can be used in such applications as electrode and through-hole connections, formation of electromagnetic and electrostatic shield layers, and so on in the manufacture and assembly of electronic components and circuits.
IPC 1-7
IPC 8 full level
H01B 1/22 (2006.01); H05K 1/09 (2006.01); H05K 9/00 (2006.01)
CPC (source: EP KR US)
H01B 1/14 (2013.01 - KR); H01B 1/22 (2013.01 - EP KR US); H05K 1/095 (2013.01 - EP US); H05K 9/0083 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0239901 A2 19871007; EP 0239901 A3 19890222; EP 0239901 B1 19921111; AU 608215 B2 19910328; AU 7076487 A 19871008; CA 1287557 C 19910813; DE 3782522 D1 19921217; DE 3782522 T2 19930603; KR 870009408 A 19871026; KR 910001805 B1 19910326; US 4789411 A 19881206
DOCDB simple family (application)
EP 87104248 A 19870323; AU 7076487 A 19870330; CA 532964 A 19870325; DE 3782522 T 19870323; KR 870003053 A 19870331; US 2983087 A 19870324